What is the downloadable content at target for xbox 360 memory cards?

at the target i go to, and just about every target i remember, when you go in the video game section, and go to the area where you can demo the xbox 360 console, right under the screen, and above the controller is a slot that says something like 'insert memory card for downloadable content.' does anyone know exactly what this content is? is it worth spending $50 on a memory card?

What is the downloadable content at target for xbox 360 memory cards?
all it is is arcade demos that you can get off live anyway and the memory card barely fits because of the plastic there. But yes you should get a memory card maybe not the $50 but like the 64mb one it's good to have when you want to move or transfer something. I use mine all the time.
Reply:It's just the demos and videos...don't get memory card